My mind wasn't on what he was saying so I'm afraid I (missed) half of it.请问此句怎样翻译

问题描述:

My mind wasn't on what he was saying so I'm afraid I (missed) half of it.请问此句怎样翻译

我的心思并没有在他说的话上,因此我怕是错过了他说的一半的话.